Not concerned with Trae at all. A shooter like that doesn't become a bust as a shooter. He's just in a funk. If he was hitting his shots, nobody would be saying anything negative about his play.
Outside of the shooting funk, he has shown to have great court vision with his passes, some good defensive instincts that I didn't even knew he had, and hasn't been afraid of having the ball in his hands.
What he needs to work on though is finding ways around bigger guys in the paint with his lay-ups. That will come in time.
But so far, outside of missing his shots (who cares, summer league, we all know he can shoot), I have been impressed.